Reference : Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
Nigg, Simon E. [> >]
Tiwari, Rakesh P. [> >]
Walter, Stefan [> >]
Schmidt, Thomas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit > ; University of Basel > Department of Physics]
Physical Review. B : Condensed Matter
American Institute of Physics
Yes (verified by ORBilu)
New York
[en] Based on the Bardeen Cooper Schrieffer (BCS) theory of superconductivity, the coherent splitting of Cooper pairs from a superconductor to two spatially separated quantum dots has been predicted to generate nonlocal pairs of entangled electrons. In order to test this hypothesis, we propose a scheme to transfer the spin state of a split Cooper pair onto the polarization state of a pair of optical photons. We show that the produced photon pairs can be used to violate a Bell inequality, unambiguously demonstrating the entanglement of the split Cooper pairs.
arXiv:1411.3945 [cond-mat.mes-hall]

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